Spectacled Guillemot vs Black Guillemot
Cepphus carbo compared with Cepphus grylle
Side-by-Side Comparison
| Attribute | Spectacled Guillemot | Black Guillemot |
|---|---|---|
| Scientific Name | Cepphus carbo | Cepphus grylle |
| Order | Charadriiformes | Charadriiformes |
| Family | Alcidae | Alcidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 38.4 cm (15.1 in) | 30.8 cm (12.1 in) |
| Weight | 480.0 g (16.93 oz) | 421.8666666666666 g (14.88 oz) |
| Diet | -- | -- |
| Clutch Size | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Spectacled Guillemot
Least Concern
Black Guillemot
About These Birds
Spectacled Guillemot
Spectacled Guillemot, 36–38 cm, breeds on rocky coasts and sea cliffs of the western North Pacific from Kamchatka to Japan. Sooty black with white spectacle patches around the eye; red feet. Coastal diver; feeds on fish and crustaceans near rocky reefs. Sedentary; stays close to breeding coast year-round.
Black Guillemot
Black Guillemot, 30–32 cm, is a compact North Atlantic alcid, distinctive in summer: entirely black with bold white wing patches and vivid red feet. Resident on rocky Arctic and boreal shores year-round; does not undertake long pelagic migrations. Dives to 50 m for blennies and sand eels near shore.